Russ,
http://www.skylinesaustralia.com/forums/topic/359642-garage-clear-out-skyline-stuff/page__p__5743411__hl__d-max+fenders__fromsearch__1#entry5743411 - this bloke is selling over fender thing.
Apparently, he is going to use hydralic ram (pretty sure his panel beater will do the work), I reckon he'll need GTR guards or widebody.
Russ, you know what I think of the 'transformation'
Wise choice.
I've got a set in 18x10.5 +22, pity 33 GTR guards are huge, these look sunken even on standard suspension... Also sunken on my previous 32 GTR which was reasonably lowered.
GTR front guards plus rolling/flaring and 30-50mm rear guards would be required in your case.
My neighbour is attempting to whack 18x10.5 +15 with 265/35 semi slicks on his 32 GTST, he is getting rear guards flaring quite a lot.
Just curious, what wheels are you getting?